3D CT-Based Preoperative Planning and Intraoperative Navigation in Reverse Shoulder Arthroplasty: Early Clinical...

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Radiology

Background:

• Reverse shoulder arthroplasty (RSA) treats end-stage rotator cuff arthropathy but faces high complication rates, primarily glenoid component failure.
• Three-dimensional computed tomography (3D CT) scans with preoperative planning and intraoperative navigation enhance glenoid component accuracy and stability.
• Limited research exists on the clinical outcomes of 3D CT-based navigation in RSA.

Purpose of the Study:

• To evaluate the radiographic and clinical outcomes of RSA using 3D CT-based preoperative planning and intraoperative navigation.
• To compare these outcomes against a standard RSA procedure.

Main Methods:

• A retrospective observational study of 80 patients undergoing RSA for shoulder osteoarthritis.
• Patients were divided into conventional and navigated surgery groups.
• Clinical and radiographic assessments were performed at multiple postoperative intervals up to 1 year, then annually.

Main Results:

• No significant differences in complication rates, glenoid notching, or clinical outcomes between groups.
• Navigated surgery utilized fewer, longer screws and resulted in a longer surgical time.
• Statistically significant differences observed in screw characteristics and surgical duration.

Conclusions:

• 3D CT-based planning and navigation for RSA are safe and yield comparable results to standard methods.
• This technology enhances implant stability and conserves bone stock through optimized screw usage.
• Potential for increased long-term implant longevity is suggested.